Vehicle control device

Abstract

A vehicle control device includes a driving control device configured to be supplied with electricity through a first power line and configured to execute a first process, and a steering control device configured to be supplied with electricity through a second power line and configured to execute a second process. The steering control device is configured such that, in a case where it is determined that power supply through the second power line has stopped during travel, when it is determined that the driving control device is not in a state of being able to execute the first process, the steering control device permits execution of the second process to stop, whereas when it is determined that the driving control device is in a state of being able to execute the first process, the steering control device does not permit execution of the second process to stop.

What is claimed is: 
     
       1. A control system comprising:
 a driving control device configured to be supplied with electricity through a first power line with turning on of a start switch of a vehicle as a trigger, the driving control device comprising a processor and a memory and being configured to execute a first process that generates a driving force for traveling in the vehicle; and 
 a steering control device configured to be supplied with electricity through a second power line with turning on of the start switch as a trigger, the steering control device comprising a processor and a memory and being configured to execute a second process that generates a steering force for steering in the vehicle, wherein 
 the steering control device is configured such that, in a case where it is determined that power supply through the second power line has stopped during travel of the vehicle:
 (1) the steering control device permits execution of the second process to stop when it is determined that the driving control device is not in a state of being able to execute the first process; and 
 (2) the steering control device does not permit the execution of the second process to stop when it is determined that the driving control device is in the state of being able to execute the first process. 
 
 
     
     
       2. The control system according to  claim 1 , wherein the steering control device is configured such that, in a case where the steering control device has permitted the execution of the second process to stop, the steering control device stops the execution of the second process when it is determined (i) that the vehicle has stopped traveling and (ii) that a steering wheel of the vehicle is not being steered. 
     
     
       3. The control system according to  claim 1 , wherein the steering control device is configured to determine, based on a voltage level of the first power line, whether the driving control device is in the state of being able to execute the first process. 
     
     
       4. The control system according to  claim 1 , wherein:
 the driving control device is configured to start executing a specified start preparation with turning on of the start switch of the vehicle as a trigger, and the driving control device is configured to execute the first process after completing the start preparation; and 
 the steering control device is configured to determine, based on whether the start preparation has been completed, whether the driving control device is in the state of being able to execute the first process. 
 
     
     
       5. The control system according to  claim 1 , wherein the second process is a process that generates (i) a steering reaction force, which is applied to a steering wheel from which power transmission to turning wheels of the vehicle is cut off, and (ii) a turning force for turning the turning wheels. 
     
     
       6. The control system according to  claim 1 , wherein the second process is a process that generates an assistive force for assisting steering of a steering wheel coupled to turning wheels of the vehicle in such a manner that power is transmittable to the turning wheels.